Ecophysiological response of cacao (Theobroma cacao cv. Criollo and cv. Trinitario) in a Southern Belizean rainforest agroforestry system across light regimes

IF 2 3区 农林科学 Q2 AGRONOMY Agroforestry Systems Pub Date : 2025-03-15 DOI:10.1007/s10457-025-01166-z
Sheri A. Shiflett, Lenardo Ash, James Rotenberg, Jacob Marlin
{"title":"Ecophysiological response of cacao (Theobroma cacao cv. Criollo and cv. Trinitario) in a Southern Belizean rainforest agroforestry system across light regimes","authors":"Sheri A. Shiflett,&nbsp;Lenardo Ash,&nbsp;James Rotenberg,&nbsp;Jacob Marlin","doi":"10.1007/s10457-025-01166-z","DOIUrl":null,"url":null,"abstract":"<div><p><i>Theobroma</i> <i>cacao</i> is a tropical crop of economic and cultural importance in Southern Belize. Cacao plants, like coffee, are commonly grown under shade trees to reduce physiological stress affecting plant longevity. However, few studies have explicitly compared ecophysiological performance and plant stress responses of commonly cultivated varieties across a gradient of light. In this study, a suite of physiological responses linked to light-use (i.e., capture and processing) and plant stress among cacao agroforestry plants were investigated comparing multiple cultivars, wild-grown cacao, and cacao saplings exposed to a light gradient from full sun to nurse-plant shaded. Comparisons between cultivars demonstrated that ‘Trinitario’ performs similarly or higher than ‘Criollo’ as evidenced by similar photosynthetic rates relative to cultivated Criollo (6.3 ± 1.4 vs. 3.5 ± 1.3 μmol m<sup>−2</sup> s<sup>−1</sup>) and higher linear electron flow rates than wild Criollo (58 ± 32 vs. 47 ± 34 μmol e<sup>−</sup> m<sup>−2</sup> s<sup>−1</sup>), though at the trade-off of more physiological stress. For example, the photochemical reflectance index of Trinitario was higher compared to cultivated Criollo (0.02 ± 0.007 vs. 0.04 ± 0.01). Mature agroforestry-grown Criollo cacao and wild grown Criollo showed similarities for both light-use and stress responses. Cacao plants grown under nurse-plant shaded conditions exhibited reduced light-use and stress responses relative to those grown under partial- to no shade. Across cacao stands, increased light capture and processing was coupled with increased plant stress, and reduced leaf temperatures were associated with reduced plant stress. These results reinforce the importance of shade optimization for sustainable cacao agroforestry.</p></div>","PeriodicalId":7610,"journal":{"name":"Agroforestry Systems","volume":"99 3","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Agroforestry Systems","FirstCategoryId":"97","ListUrlMain":"https://link.springer.com/article/10.1007/s10457-025-01166-z","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0

Abstract

Theobroma cacao is a tropical crop of economic and cultural importance in Southern Belize. Cacao plants, like coffee, are commonly grown under shade trees to reduce physiological stress affecting plant longevity. However, few studies have explicitly compared ecophysiological performance and plant stress responses of commonly cultivated varieties across a gradient of light. In this study, a suite of physiological responses linked to light-use (i.e., capture and processing) and plant stress among cacao agroforestry plants were investigated comparing multiple cultivars, wild-grown cacao, and cacao saplings exposed to a light gradient from full sun to nurse-plant shaded. Comparisons between cultivars demonstrated that ‘Trinitario’ performs similarly or higher than ‘Criollo’ as evidenced by similar photosynthetic rates relative to cultivated Criollo (6.3 ± 1.4 vs. 3.5 ± 1.3 μmol m−2 s−1) and higher linear electron flow rates than wild Criollo (58 ± 32 vs. 47 ± 34 μmol e m−2 s−1), though at the trade-off of more physiological stress. For example, the photochemical reflectance index of Trinitario was higher compared to cultivated Criollo (0.02 ± 0.007 vs. 0.04 ± 0.01). Mature agroforestry-grown Criollo cacao and wild grown Criollo showed similarities for both light-use and stress responses. Cacao plants grown under nurse-plant shaded conditions exhibited reduced light-use and stress responses relative to those grown under partial- to no shade. Across cacao stands, increased light capture and processing was coupled with increased plant stress, and reduced leaf temperatures were associated with reduced plant stress. These results reinforce the importance of shade optimization for sustainable cacao agroforestry.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
可可树是伯利兹南部一种具有重要经济和文化价值的热带作物。可可和咖啡一样,通常在树荫下种植,以减少影响植物寿命的生理压力。然而,很少有研究明确比较不同光照梯度下常见栽培品种的生态生理表现和植物应激反应。在这项研究中,研究人员比较了多个栽培品种、野生可可和暴露在从全日照到遮荫护苗的光照梯度下的可可树苗,研究了与可可农林植物的光利用(即捕获和加工)和植物胁迫有关的一系列生理反应。栽培品种之间的比较表明,"Trinitario "的表现与 "Criollo "相似或更高,表现在光合速率与栽培的 Criollo 相似(6.3 ± 1.4 vs. 3.5 ± 1.3 μmol m-2 s-1),线性电子流速率高于野生的 Criollo(58 ± 32 vs. 47 ± 34 μmol e- m-2 s-1),但需要以更大的生理压力为代价。例如,Trinitario 的光化学反射指数比栽培的 Criollo 高(0.02 ± 0.007 对 0.04 ± 0.01)。农林业种植的成熟 Criollo 可可豆和野生 Criollo 可可豆在光利用和胁迫反应方面表现出相似性。与在部分遮荫或无遮荫条件下生长的可可植株相比,在遮荫条件下生长的可可植株表现出较低的光利用和胁迫反应。在所有可可树群中,光捕获和处理的增加与植物应激反应的增加有关,而叶片温度的降低与植物应激反应的减少有关。这些结果加强了遮荫优化对可持续可可农林业的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Agroforestry Systems
Agroforestry Systems 农林科学-林学
CiteScore
5.30
自引率
9.10%
发文量
78
审稿时长
4.5 months
期刊介绍: Agroforestry Systems is an international scientific journal that publishes results of novel, high impact original research, critical reviews and short communications on any aspect of agroforestry. The journal particularly encourages contributions that demonstrate the role of agroforestry in providing commodity as well non-commodity benefits such as ecosystem services. Papers dealing with both biophysical and socioeconomic aspects are welcome. These include results of investigations of a fundamental or applied nature dealing with integrated systems involving trees and crops and/or livestock. Manuscripts that are purely descriptive in nature or confirmatory in nature of well-established findings, and with limited international scope are discouraged. To be acceptable for publication, the information presented must be relevant to a context wider than the specific location where the study was undertaken, and provide new insight or make a significant contribution to the agroforestry knowledge base
期刊最新文献
Can homegarden commercialization contribute to food security in Sahel? Case study from northern Ghana Ecophysiological response of cacao (Theobroma cacao cv. Criollo and cv. Trinitario) in a Southern Belizean rainforest agroforestry system across light regimes Diversity, utilization, and sustainable management of wild edible fruit plants in agroforestry systems: a case study in Central Kalimantan, Indonesia Drivers of agroforestry adoption in Northern Ireland in the context of British and Irish policy Biophysical characterization and typology of interactions in the agroforests of central cameroon
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1